Infrastructure Administrator

Trifecta Technologies Inc.; Allentown (Lehigh County); On-site; USD 80,000 - 100,000; Full time

Job summary

A technology company in Lehigh County is looking for an experienced Infrastructure Administrator to manage on-prem and cloud-based systems. The ideal candidate should have over 7 years of experience in network or systems administration, along with strong knowledge of Microsoft 365 and Azure. This hybrid role requires a proactive approach to maintaining secure and reliable infrastructure, along with excellent troubleshooting skills. Join a supportive community dedicated to innovation and growth.

Qualifications

• 7+ years of experience in Network or Systems Administration.
• 7+ years of experience in Microsoft 365 and/or Azure administration.
• Advanced networking certifications such as CCNA, CCNP, Fortinet NSE, or equivalent.

Responsibilities

• Manage and support on-prem and cloud-based infrastructure.
• Monitor system performance and perform patch management.
• Provide Tier 2/3 technical support and troubleshoot complex issues.

Skills

Network administration

Microsoft 365 management

TCP/IP knowledge

Troubleshooting skills

Scripting (PowerShell, Python)

Endpoint protection implementation

Education

Bachelor’s degree in Information Technology or related field

Tools

Microsoft 365

Azure

Jira

CrowdStrike

Nessus

Zabbix

Job description

At Trifecta, we are more than just a technology company. We are a community of innovators, collaborators, and problem solvers dedicated to driving positive change in the world of technology. We are a dynamic organization that embraces diversity, fosters inclusion, and values the unique contributions of each of Trifecta Teammates. At Trifecta you will find a supportive and inclusive culture, endless opportunities for growth and development, and a vibrant community of passionate professionals dedicated to shaping the future!

About the role

We are seeking a highly motivated and detail-oriented Infrastructure Administrator to manage and support Trifecta and client on-prem and cloud-based infrastructure. This role is responsible for maintaining secure, reliable, and scalable systems across physical, virtual, and cloud environments. The ideal candidate is proactive, solutions-focused, and comfortable working in a fast-paced environment with multiple priorities. This is a hybrid role.

Key Responsibilities

Infrastructure and System Administration

• Maintain file servers, print services, and core routing services
• Provide technical administration of enterprise switches (Aruba, Fortinet, Unifi, Dell)
• Provide technical support and maintenance of campus fiber (single and multi-mode), Cat6, etc.
• Advanced knowledge of TCP/IP, SNMP, 802.11, VoIP, and PoE, DNS, DHCP, VLANs, and routing protocols (BGP, OSPF, RIP, etc.)
• Expert knowledge of SAN technologies (Dell, Synology, etc.)
• Monitor system performance, availability, and capacity
• Perform patch management and system upgrades
• Manage backups and disaster recovery processes
• Experience with backup solutions and disaster recovery
• Knowledge of network automation and scripting (PowerShell, Python, etc.)
• Familiarity with Jira or Freshdesk ticketing systems, and IT documentation platforms
• Administer Microsoft 365 (Exchange Online, SharePoint, Teams, OneDrive)
• Manage hybrid Microsoft environments (Azure AD, Entra ID, Intune, VMs, storage)
• Support hybrid hosting environments and cloud connectivity (site-to-site VPN, SD-WAN, direct connections)
• Configure and monitor cloud security and compliance controls
• Experience with Intune or similar MDM management platforms for Apple and Windows devices

Security and Compliance

• Implement CrowdStrike and ESET endpoint protection and security best practices
• Maintain DUO and Microsoft MFA, conditional access policies, and role-based access control
• Conduct regular CrowdStrike and Nessus vulnerability remediation
• Ensure systems meet internal and regulatory compliance requirements
• Knowledge of monitoring tools (Zabbix, Nagios, SolarWinds, PRTG, etc.)
• Experience with enterprise firewalls and security technologies
• Knowledge of cybersecurity frameworks and best practices

User and Operational Support

• Provide Tier 2/3 technical support
• Troubleshoot complex infrastructure and cloud-related issues
• Document systems, processes, and procedures
• Collaborate with vendors and internal stakeholders

Required Qualifications

• Primary residence within 2 hours of Allentown, PA
• Bachelor’s degree in Information Technology, Computer Science, or related field
• 7+ years of Network or Systems Administration experience
• 7+ years of Microsoft 365 and/or Azure administration
• Advanced networking certifications such as CCNA, CCNP, Fortinet NSE, or equivalent
• Experience in a Managed Services (MSP) environment
• Excellent troubleshooting and problem-solving skills